An elementary school in Hayward, Calif. will sponsor a toy gun trade-in, encouraging kids to swap their harmless toy weapons for a chance to win a new bicycle. The purpose of the trade-in is to stop children from playing with toy guns, which may make them more likely to commit violence with real guns, said Strobridge Elementary principal Chris Hill. “Playing with toys guns, saying ‘I’m going to shoot you,’ desensitizes them, so as they get older, it’s easier for them to use a real gun,” Hill said in a statement to Mercury News. The trade-in will take place on...